Seismic exploration methods and effect in Kunlun piedmont zone

Owing to the complex surface and subsurface conditions of Kunlun piedmont zone, seismic construction is very difficult.The data acquired is low in S/N ratio.And the noise interference is serious.In course of data processing, the problem of static correction is serious and the velocity of stratum in the subsurface is changing acutely in vertical and horizontal direction.There are many difficulties during seismic data processing.And it is difficult to image.Aiming at these difficulties, we designed the reasonable gathering parameter and used the changeable observation system to acquire data.These measures have greatly raised the S/N ratio.By way of using pertinent static technology, noise pressing technology as well as the construction imagery technology, we have solved the seismic data imagery problem in mountainous region.The constitute form is distinct and the fault contact concern is clear in the finally stack section.